Home / 26,178.90-36,129.69-22,918.89

Finding the Fourth Proportional to 26,178.90, 36,129.69 and 22,918.89

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Solution

The fourth proportional to 26,178.90, 36,129.69 and 22,918.89 is: 31,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,178.90 : 36,129.69 = 22,918.89 : x
  2. Step 2: Convert to fraction form
    26,178.90/36,129.69 = 22,918.89/x
  3. Step 3: Cross multiply
    26,178.90x = 36,129.69 × 22,918.89
  4. Step 4: Simplify right side
    26,178.90x = 828,052,390.84
  5. Step 5: Solve for x
    x = 828,052,390.84/26,178.90
  6. Step 6: Final answer
    x = 31,630.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.